Casting mold holder for matrix setting and type-line casting machines



July 30, 1940., K. BENDORFF 2,209,557

CASTING MOLD HOLDER FOR MATRIX SETTING AND TYPE-LINE CASTING MACHINES Filed March 20, 1940 /0 venlor Patented July 30, 1940 2,209,557 CASTING Mom) HOLDER ron MATRIX SET- CHINES TING AND CASTING MA- Kurt Bendorff, Berlin, Germany, assignor to the firm Typograph G. in.

b. H., Berlin, Germany Application March 20, 1940, Serial No. 325,073

' In Germany January 27, 1939 6 Claims.

This invention relates to the casting mold holder of a matrix setting and type-line casting machine and more particularly to the means adapted for rapidly changing the casting mold. In matrix setting and type-line casting machines having complete casting means, the casting mold has hitherto been received within a closed frame of the casting mold holder of uniform size and held by means of spring index pins. This was sufficient for the heretofore usual casting molds without conical adjustment and did not permit the use of an easily adjustable casting mold for all type-line thicknesses. However, such casting molds have been used in matrix setting and type-line casting machines without complete casting means and in order that the mold may be quickly changed in these machines, several casting molds adjusted for difiz'erent sizes are arranged within a so-called casting wheel and are adapted to be brought into operative position by rotating the wheel. However, this device cannot be used in conjunction with machines which produce complete casting lines and moreoverwhen using a casting wheel only a limited number of casting molds, for example, 4 to 5 molds, can be changed in the said manner. The casting with a mold, which is not provided in a casting wheel, requires an inconvenient and time-consuming dismantling of the casting wheel. i

The advancement attained with the present invention resides in the fact that in connection with matrix setting and type-line casting machines, an unlimited number of casting molds, which are adjustable as regards their type-line length and thickness, are adapted to be easily changed in a very short time by only one manipulation. This object is attained according to the invention in that a dovetailed guide (tapering in two directions) of the cross member of the casting mold holder receives the foot (also tapering in two directions) of the casting mold. By means of a special clamping member which is tapered in two directions on the side engaging with the foot of the casting mold and is reliably guided without being twisted on the cross-member of the casting mold holder, the casting mold is simultaneously pressed against base and rear face of the casting mold holder by turning a screw which connects the said clamping member to the casting mold holder. By loosening the said screw for which purpose only a very short turn is sufiicient, the casting mold can then be easily removed from the casting mold holder and another casting mold can be inserted withits foot, which is the same forv all molds, without making any further changes on the casting mold holder and by means of the same short turn of the screw actuating the clamping member, the said casting mold is firmly secured in its operative position.

A constructional form of the invention is shown diagrammatically'in the accompanying drawing.

Figure 1 is a view of the new casting mold provided with the foot adapted for quickly changing the casting mold.

Figure 2 is a View of the casting mold holder which is open above and provided with the receiving cross member adapted for quickly changing the mold.

Figure 3 is a plan of Figure 2-, and

Figure 4 is a section on line IV-IV of Figures 1 and 2 the casting mold being inserted in the casting mold holder.

The casting mold 5 which consists, as is known, of the upper part I, the lower part 2, the intermediate members 3 limiting the type-line lengths and is held together by the screws 4, is provided with a special footB preferably made out of one piece with the lower part 2. The said foot has at both ends a dovetailed guide 1 or I in front and above and tapering in two directions. The casting mold holder 8 which is swingably mounted on the machine frame in the known manner is no longer designed as a frame surrounding the casting mold 5 but terminates in a traverse or cross member 9 for receiving the foot 6 of the casting mold 5. For this purpose, the one end (shown in Figures 2 and 3 on the right) of the cross'member 9 is provided with a stationary dovetailed guide l0 which also tapers in two directions and corresponds to the guide faces I of the foot 6 of the casting mold. On the other end (shown in Figures 2 and 3 on the left) of the cross member 9 there is provided a dovetailed guide l0 which also tapers in two directions and is adapted for engaging with the guide 1' of the foot ,6 of the casting mold on this side. The free space between the two doublesided conical dovetailed guides ID, ID on the cross member 9 of the casting mold holder 8 is adapted for receiving the foot 6 of the same length for all casting molds 5 which vary in size. The dovetailed guide ID which is provided on the cross member 9 is yieldingly but adjustably connected to the cross member 9. According to the invention, there is arranged for this purpose a clamping member II which is provided on its end turned toward the foot 6 of the casting mold 5 with the two-sided conical dovetailed guide l0 While the other end is guided with a guiding face 12 (tapering. only in one direction) on a corresponding bearing member l3 which also tapers only in one direction and is secured to the cross member 9. A screw l6, which engages through a bore 14 of the cross member 9 in a threaded hole l5 of the clamping member II, is adapted to loosen the clamping member H in a simple manner for the purpose of removing a casting mold 5 from the holder 8 or to tighten the clamping. member again after the insertion of the foot 6 of another casting mold 5. Owing to the two-sided conical design of the dovetailed guides 1, I and II], It and when tightening the screw it, that is to say, when tightening the clamping member I, foot 6 of the casting mold 5 is pressed simultaneously with, its rear face against the cross member 9 and with its base downwardly against the supporting surface I! of the casting mold holder 8. The casting mold 5 is thus unyieldingly secured in a lateral direction as well as in a vertical direction so that during the operation of the machine, a displacement of the casting mold 5 cannot take place during the casting process nor during the shearing off of the type-line casting in conjunction with an upwardly acting force. After the loosening of the screw Eli and especially after the removal of the casting mold 5 from the holder 8, it is advantageous for preventing a twisting or jamming of the clamping member H and for facilitating the subsequentre-insertion of a casting mold 5 to provide its surface I2 which engages with the fixed bearing 13 of the cross member 9 with a guide ledge 58 which reliably guides (without twisting) the clamping member I I in a corresponding groove if] of the bearing IS. The other parts, which cooperate with the casting mold 5, are known. The movable intermediate plate 20 which effects the complete casting and is provided with the casting slot 2| and the type-line ejecting slot 22 is arranged on the side turned toward the casting pot. The said intermediate plate is controlled by rods 23 moved by the machine drive and a driving member 24 which engages in corresponding recesses of the intermediate plate 20 is secured to said rods, as usual, by means of a screw 25. The driving member 2 of the intermediate plate is limited in its slidable movement by a longitudinal slot 26 on the screw 25 so that it can be brought out of engagement with the intermediate plate 29 into the rearward position indicated by broken lines in Figures 3 and 4. A washer 21 covering the longitudinal slot 26 protects the latter against the entry of ejected metal so that provision is always made for the easy mobility of the driving member 25 of the intermediate plate after loosening the screw 25. A rearwardly urging spring 28, for example a leaf spring pressing against the rod 23 (Fig. i) should preferably be connected to the driving member 24 of the intermediate plate, said spring tending to bring the driving member out of engagement with the intermediate plate 29.

The changing of a casting mold is then effected in a simple manner. The screw 25 is first slightly loosened until the spring 28 can bring the driving member 24 in its rearward position out of engagement with the intermediate plate 29 and then the screw H5 is loosened-preferably with the same screw key-so that the clamping member I I can yield and the casting mold 5 can be removed with its foot ii from the casting mold holder 8. The screws 4, which hold the casting mold parts i, 2, 3 together, are preferably designed in such a manner that when adjusting a new size they can also be manipulated with the same screw key. The insertion of a casting mold 5 in the casting mold holder 9 can also be effected quickly and in a simple manner; it is then only necessary to tighten the screw I6 or the clamping member I! for ensuring the immovable connection between the properly inserted casting mold foot 6 and the cross member 9 of the casting mold holder whereupon it is only necessary to bring the driving member 24 of the intermediate plate into engagement with the intermediate plate 20 by a pressure against the action of the spring 28 and to secure it in this position by tightening the screw 25. In

order that the driving member 26 of the intermediate plate may also be shifted by means of a tool, grooves 29 are preferably provided in the surface of the driving member which in such a case permit the insertion of a'screw driver or the like.

Having thus fully described the invention what is claimed as new and desired to be secured by Letters Patent is:

1. In a casting mold for a matrix setting and type-line casting machine, a holder for said mold comprising a cross member, a foot member on the lower portion of said casting mold adapted to engage said cross member, a pair of dovetailed guides on said foot member, and a complementary pair of dovetailed guides on said cross member, cooperating with said first named guides, for retaining said members in place, both of said pairs of guides tapering in twodirections, at least one of said second namedguides being removably secured to said cross member,

2. In a casting mold for a matrix setting and type-line casting machine, a holder for said mold comprising a cross member, a foot member on the lower portion of saidcasting mold adapted to engage said .cross member, a pair of dovetailed guides on said foot member, a complementary dovetailed guide on said cross member cooperating with one of said first named guides, and adjustablemeans on said cross member cooperating with the other of said first named guides, for'retaining said foot and cross members in place.

3. Apparatus as claimed in claim 2, wherein said last named means comprises a clamping member beveled on one side, a complementary beveled face on said cross member cooperating with the bevel on said clamping member, the opposite side of said clamping member being provided with a dovetailed guide.

4. In a casting mold for a matrix setting and type-line casting machine, a holder for said mold comprising a cross member, a foot member on the lower portion of said casting mold, adapted to engage said cross member, a pair of dovetailed guides on said foot member, a complemen tary dovetailed guide fixed to said cross member, cooperating with one of said first named guides, a clamping member beveled on one side, a complementary beveled face on said cross member cooperating with the bevelon said clamping member, the opposite side of said clamping member being provided with a dovetailed guide cooperating with the other of said first named guides, and a threaded bolt extending through a bore in said cross member and engaging in a threaded opening in said clamping member, for adjustably securing the latter to said cross member.

5. In a casting mold for a matrix setting and type-line casting machine, a holder for said mold comprising a cross member, a foot member on the lower portion of said casting mold, adapted to engage said cross member, a pair of dovetailed guides on said foot member, a complementary 10 her and engaging in a threaded opening in said clamping member, for adjustably securing the latter to said cross member, and meansfor guiding said clamping member in said cross member, for preventing rotation of said clamping member.

6. Apparatus as claimed in claim 5, wherein saidlast named means comprises a projecting lug on the beveled side of said clamping member, and

a groove in the complementary beveled face of said cross member. KURT BENDORFF. 

